Turn off SWD pinging/discovery on STLink-V3 MINIE/SET

[lmessing]

Hello,

I have been using the STLINKV3-PWR to flash programs onto the STM32WB55 via SWD. Afterwards I have script that automatically measured the current consumption when the CPU is asleep. This is working fine.

 

Now I have to switch to STLINKV3- MINIE or SET. With this however the consumption of the target device rises from 60uA(PWR) to 500uA (MINIE/SET). It looks like the MINIE is constantly searching for boards or waking up the CPU. Is it possible to turn this feature off with the STM32_Programmer_CLI or somehow else keep the CPU sleeping? Disconnecting the device from the debugger during measurement is not an option for us.

Consumption with V3-PWR connected:

ST-LinkV3 PWR

ST-LinkV3 MINIE

Thank you & BR

[Andrew Neil]

---

@lmessing wrote:

Disconnecting the device from the debugger during measurement is not an option for us.

---

Why not?

You really can't make meaningful measurements in the uA range with any debug probe connected - it will always add some leakage.

[lmessing]

During production testing we do not have the ability to manually connect/disconnect the device.

It is working with the ST Link V3 PWR, so it is possible to keep a programmer connected via cables to measure the sleep current. With connected I just mean the hardware is connected not any transmission happening. Accuracy of +-10uA is fine.